# -*- coding: utf-8 -*-
'''
Created on 2012-7-8
@author: me
'''
import string
print string.ascii_lowercase
print string.ascii_uppercase
print string.ascii_letters
print string.digits
print string.hexdigits
print  string.letters
print string.octdigits
print 'a' , 'b'
#A string containing all characters that are considered whitespace. 
print string.whitespace